             usage-queued? (build-model/in-usage-queue? build)
             project (get-in data [:project-data :project])
             plan (get-in data [:project-data :plan])
-            config-data (:config-data build-data)]
+            config-data (:config-data build-data)
+            build-params (:build_parameters build)]
         (html
          [:div.sub-head
           [:div.sub-head-top

            [:li {:class (when (= :config selected-tab) "active")}
             [:a {:on-click #(raise! owner [:build-header-tab-clicked {:tab :config}])}
              "circle.yml"]]

            (when logged-in?
              [:li {:class (when (= :usage-queue selected-tab) "active")}

                                  {:opts {:show-node-indices? (< 1 (:parallel build))}})

             :config (om/build build-config {:config-string (get-in build [:circle_yml :string])})

             :build-parameters (om/build build-parameters {:build-parameters build-params})

             :usage-queue (om/build build-queue {:build build
                                                 :builds (:builds usage-queue-data)
